tofsee | 542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 17:29

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General

Target

JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe
Size

241KB
MD5

26f82c93b67c17fdc57eb442a9f75cc4
SHA1

a3532ef0fc60cefd6923341449c927812190334a
SHA256

542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c
SHA512

2afc90bce64ca13059ae3861daca7319d216956aeecf935be596c09211c53f1f0b81b0bb5159282d6ac7f7805e762c7d584d8d01565cbd6cd2e76d6672710167
SSDEEP

6144:Dvv4iHVncWHsZO694FdXKde7cIncP3Nw:Dvv4iHVrsZO6mdXF7cInE

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\oqasodal = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2900	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\oqasodal\ImagePath = "C:\\Windows\\SysWOW64\\oqasodal\\qxjwfstn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2628	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	qxjwfstn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 2628	2828	qxjwfstn.exe	43

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2412	sc.exe
2040	sc.exe
2740	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qxjwfstn.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2552	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	30
PID 2388 wrote to memory of 2552	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	30
PID 2388 wrote to memory of 2552	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	30
PID 2388 wrote to memory of 2552	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	30
PID 2388 wrote to memory of 2688	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	32
PID 2388 wrote to memory of 2688	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	32
PID 2388 wrote to memory of 2688	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	32
PID 2388 wrote to memory of 2688	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	32
PID 2388 wrote to memory of 2412	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	34
PID 2388 wrote to memory of 2412	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	34
PID 2388 wrote to memory of 2412	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	34
PID 2388 wrote to memory of 2412	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	34
PID 2388 wrote to memory of 2040	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	36
PID 2388 wrote to memory of 2040	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	36
PID 2388 wrote to memory of 2040	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	36
PID 2388 wrote to memory of 2040	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	36
PID 2388 wrote to memory of 2740	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	38
PID 2388 wrote to memory of 2740	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	38
PID 2388 wrote to memory of 2740	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	38
PID 2388 wrote to memory of 2740	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	38
PID 2388 wrote to memory of 2900	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	41
PID 2388 wrote to memory of 2900	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	41
PID 2388 wrote to memory of 2900	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	41
PID 2388 wrote to memory of 2900	2388	JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe	41
PID 2828 wrote to memory of 2628	2828	qxjwfstn.exe	43
PID 2828 wrote to memory of 2628	2828	qxjwfstn.exe	43
PID 2828 wrote to memory of 2628	2828	qxjwfstn.exe	43
PID 2828 wrote to memory of 2628	2828	qxjwfstn.exe	43
PID 2828 wrote to memory of 2628	2828	qxjwfstn.exe	43
PID 2828 wrote to memory of 2628	2828	qxjwfstn.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oqasodal\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qxjwfstn.exe" C:\Windows\SysWOW64\oqasodal\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create oqasodal binPath= "C:\Windows\SysWOW64\oqasodal\qxjwfstn.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2412
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description oqasodal "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2040
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start oqasodal
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2900

C:\Windows\SysWOW64\oqasodal\qxjwfstn.exe
C:\Windows\SysWOW64\oqasodal\qxjwfstn.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_542c1a097f2a8a8b3dd27713ce3fc0873d64bb255f43265a577d0537adb0e95c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\qxjwfstn.exe

Filesize
13.7MB

MD5
c48550375aa34e6052620cce7ffced3c

SHA1
b3a6b733a496b42f866a7475551a546c9b956660

SHA256
a8e5dca4edb1fea945eeaa7e824599975718df2f59295a4834f945af48fbd12f

SHA512
3a6fcc7612444be62ab80d8c5e0f1da437bbeb950ccbbb579e581fca80faa906465e066cb84d14ce3a9cf878945a75abcd8e29f7075d081c0e225bfd9f279c4e

Download Submit
memory/2388-1-0x0000000000CB0000-0x0000000000DB0000-memory.dmp

Filesize
1024KB

Download
memory/2388-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2388-4-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/2388-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2388-9-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/2628-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2628-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2628-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2628-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-17-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads